Show post in slider

I used this to show images on slider .Try this

<div class="col-md-12">
      <div class="carousel carousel-showmanymoveone slide" id="carousel123">
        <div class="carousel-inner">
          <div class="item active">
            <div class="col-xs-12 col-sm-6 col-md-3"> <img src="https://wordpress.stackexchange.com/questions/217614/<?php echo plugin_dir_url( __FILE__ ) ."img/download-1.jpg'; ?>"></div>
          </div>
          <div class="item">
              <div class="col-xs-12 col-sm-6 col-md-3"> <img src="https://wordpress.stackexchange.com/questions/217614/<?php echo plugin_dir_url( __FILE__ ) ."img/download-1.jpg'; ?>"></div>
          </div>
          <div class="item">
              <div class="col-xs-12 col-sm-6 col-md-3"> <img src="https://wordpress.stackexchange.com/questions/217614/<?php echo plugin_dir_url( __FILE__ ) ."img/download-1.jpg'; ?>"></div>
          </div>          
          <div class="item">
              <div class="col-xs-12 col-sm-6 col-md-3"> <img src="https://wordpress.stackexchange.com/questions/217614/<?php echo plugin_dir_url( __FILE__ ) ."img/download-1.jpg'; ?>"></div>
          </div>
          <div class="item">
              <div class="col-xs-12 col-sm-6 col-md-3"> <img src="https://wordpress.stackexchange.com/questions/217614/<?php echo plugin_dir_url( __FILE__ ) ."img/download-1.jpg'; ?>"></div>
          </div>
          <div class="item">
              <div class="col-xs-12 col-sm-6 col-md-3"> <img src="https://wordpress.stackexchange.com/questions/217614/<?php echo plugin_dir_url( __FILE__ ) ."img/download-1.jpg'; ?>"></div>
          </div>
          <div class="item">
              <div class="col-xs-12 col-sm-6 col-md-3"> <img src="https://wordpress.stackexchange.com/questions/217614/<?php echo plugin_dir_url( __FILE__ ) ."img/download-1.jpg'; ?>"></div>
          </div>
          <div class="item">
              <div class="col-xs-12 col-sm-6 col-md-3"> <img src="https://wordpress.stackexchange.com/questions/217614/<?php echo plugin_dir_url( __FILE__ ) ."img/download-1.jpg'; ?>"></div>
          </div>
        </div>
        <a class="left carousel-control" href="#carousel123" data-slide="prev"><i class="glyphicon glyphicon-chevron-left"></i></a>
        <a class="right carousel-control" href="#carousel123" data-slide="next"><i class="glyphicon glyphicon-chevron-right"></i></a>
      </div>
    </div>
  </div>

script

(function(){
  $('.carousel-showmanymoveone .item').each(function(){
    var itemToClone = $(this);

    for (var i=1;i<4;i++) {
      itemToClone = itemToClone.next();

      // wrap around if at end of item collection
      if (!itemToClone.length) {
        itemToClone = $(this).siblings(':first');
      }

      // grab item, clone, add marker class, add to collection
      itemToClone.children(':first-child').clone()
        .addClass("cloneditem-"+(i))
        .appendTo($(this));
    }
  });
}());

css

.carousel-showmanymoveone .carousel-control {
  width: 4%;
  background-image: none;
}
.carousel-showmanymoveone .carousel-control.left {
  margin-left: 15px;
}
.carousel-showmanymoveone .carousel-control.right {
  margin-right: 15px;
}
.carousel-showmanymoveone .cloneditem-1,
.carousel-showmanymoveone .cloneditem-2,
.carousel-showmanymoveone .cloneditem-3 {
  display: none;
}
@media all and (min-width: 768px) {
  .carousel-showmanymoveone .carousel-inner > .active.left,
  .carousel-showmanymoveone .carousel-inner > .prev {
    left: -50%;
  }
  .carousel-showmanymoveone .carousel-inner > .active.right,
  .carousel-showmanymoveone .carousel-inner > .next {
    left: 50%;
  }
  .carousel-showmanymoveone .carousel-inner > .left,
  .carousel-showmanymoveone .carousel-inner > .prev.right,
  .carousel-showmanymoveone .carousel-inner > .active {
    left: 0;
  }
  .carousel-showmanymoveone .carousel-inner .cloneditem-1 {
    display: block;
  }
}
@media all and (min-width: 768px) and (transform-3d), all and (min-width: 768px) and (-webkit-transform-3d) {
  .carousel-showmanymoveone .carousel-inner > .item.active.right,
  .carousel-showmanymoveone .carousel-inner > .item.next {
    -webkit-transform: translate3d(50%, 0, 0);
            transform: translate3d(50%, 0, 0);
    left: 0;
  }
  .carousel-showmanymoveone .carousel-inner > .item.active.left,
  .carousel-showmanymoveone .carousel-inner > .item.prev {
    -webkit-transform: translate3d(-50%, 0, 0);
            transform: translate3d(-50%, 0, 0);
    left: 0;
  }
  .carousel-showmanymoveone .carousel-inner > .item.left,
  .carousel-showmanymoveone .carousel-inner > .item.prev.right,
  .carousel-showmanymoveone .carousel-inner > .item.active {
    -webkit-transform: translate3d(0, 0, 0);
            transform: translate3d(0, 0, 0);
    left: 0;
  }
}
@media all and (min-width: 992px) {
  .carousel-showmanymoveone .carousel-inner > .active.left,
  .carousel-showmanymoveone .carousel-inner > .prev {
    left: -25%;
  }
  .carousel-showmanymoveone .carousel-inner > .active.right,
  .carousel-showmanymoveone .carousel-inner > .next {
    left: 25%;
  }
  .carousel-showmanymoveone .carousel-inner > .left,
  .carousel-showmanymoveone .carousel-inner > .prev.right,
  .carousel-showmanymoveone .carousel-inner > .active {
    left: 0;
  }
  .carousel-showmanymoveone .carousel-inner .cloneditem-2,
  .carousel-showmanymoveone .carousel-inner .cloneditem-3 {
    display: block;
  }
}